Multiple Choice

Please answer all questions


1	The lymphatic system _________. (p. 146)
		A)	takes up excess tissue fluid and returns it to the bloodstream
		B)	absorbs fats in the intestinal villi and transports them to the bloodstream
		C)	helps to defend the body against disease
		D)	does all of the above


2	The thoracic duct return lymph into the left __________ vein. (p. 146)
		A)	lymphatic
		B)	subclavian
		C)	vena cava
		D)	pulmonary


3	Localized swelling caused by accumulation of tissue fluid is called a(n) ______. (p. 146)
		A)	edema
		B)	aneurysm
		C)	inflammation response
		D)	node


4	Each nodule of a lymph node contains a sinus filled with __________. (p. 147)
		A)	lymphocytes
		B)	macrophages
		C)	both A and B


5	The spleen's purpose is to __________. (p. 147)
		A)	filter lymph of impurities
		B)	filter blood of impurities
		C)	both A and B


6	A spleen nodule contains __________. (p. 147)
		A)	red pulp with blood cells and macrophages
		B)	white pulp with lymphocytes
		C)	both A and B


7	The thymus secretes __________ that is believed to help T lymphocytes mature. (p. 148)
		A)	thyroxin
		B)	leukocytes
		C)	thymosin
		D)	epinephrine


8	Immunity is the ability of the body to defend itself against _______. (p. 148)
		A)	infectious agents
		B)	foreign cells
		C)	cancer cells
		D)	all of the above


9	The nonspecific defenses include ______. (pp. 148,150)
		A)	natural killer cells
		B)	barriers to entry
		C)	inflammatory reaction
		D)	complement and interferon
		E)	all of the above


10	Monocytes differentiate into __________. (p. 148)
		A)	amoeboid cells
		B)	neutrophils
		C)	macrophages
		D)	microphages


11	Complement is activated when __________ enter the body. (p. 150)
		A)	antibodies
		B)	pathogens
		C)	red blood cells
		D)	enzymes


12	A virus-infected cell produces and secretes __________. (p. 150)
		A)	antigen
		B)	exon
		C)	interferon
		D)	histamine


13	B cells give rise to plasma cells, which produce __________. (p. 150)
		A)	antibodies
		B)	antigen
		C)	erythrocytes
		D)	memory cells


14	The shape of receptors on lymphocytes is complementary to a specific __________. (p. 150)
		A)	antibody
		B)	antigen
		C)	complement protein
		D)	lymphocyte


15	__________ antibodies are responsible for allergic reactions. (p. 152)
		A)	IgM
		B)	IgG
		C)	IgC
		D)	IgE


16	In order to recognize a nonself antigen, T cells must have the assistance of ____________. (p. 154)
		A)	antibodies
		B)	antigen-presenting cells
		C)	complement proteins
		D)	interferon


17	Cytotoxic T cells attack and destroy __________-bearing or abnormal body cells. (p. 155)
		A)	histamine
		B)	antigen
		C)	B-cell
		D)	antibody


18	Cytotoxic T cells and memory T cells are involved in _________________. (p. 155)
		A)	antibody-mediated immunity
		B)	nonspecific body defenses
		C)	cell-mediated immunity
		D)	all of these are correct


19	When exposed to an antigen, helper T cells enhance the response of other immune cells by secreting __________. (p. 155)
		A)	IgM
		B)	MHC
		C)	cytokines
		D)	histamines


20	Active immunity is dependent upon the presence of ___. (p. 156)
		A)	memory B cells
		B)	memory T cells
		C)	lymphocytes
		D)	memory B cells and memory T cells


21	Substances that contain an antigen to which the immune system responds are called ________. (p. 156)
		A)	vaccines
		B)	medications
		C)	immunoglobulins
		D)	mast cells


22	Presently, monoclonal antibodies may be used in ___. (p. 158)
		A)	detecting pregnancy
		B)	identifying infections
		C)	sorting out different types of T cells in blood samples
		D)	all of the above functions


23	Human illnesses caused by an attack on tissues by the body's own antibodies and T cells are called _________. (p. 160)
		A)	antibody diseases
		B)	autoimmune diseases
		C)	allergic reactions
		D)	allergen diseases

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